Bump on penis

I noticed a bump on my penis this past weekend. the base was red and had a whitehead. no itching or burning happened before it appeared, but was real tender to the touch. last night the white head went away. I left it alone like I was told. After the white head disappeared there was still a red bump. It doesn’t really hurt and I am worried it could be syphilis but cant quite tell. can anyone tell me what they think? it didn’t ulcer i don’t think. confused and worried.

The way I deal with things that look like this has initially done is to put Liquid antiseptic on it 3 or 4 times a day for 3 or 4 days and see whether it is almost fully healed or not. All you require is a tiny drop on a fingertip and apply it directly without diluting it.
If you think you have been at risk of an STD best to get tested as that is the only way you are going to achieve peace of mind

what is a good antiseptic?

does it look like syphilis

does this look like syphilis

dettol or tcp

did u ever end up getting tested . asking because im on the same boat of being worried my self